Computer
hackers from North Korea are believed to have stolen a large
number of classified military documents from South Korea,
including plans to “decapitate” the North’s leadership.

South Korea's Yonhap news agency reported Tuesday authorities
believe hackers broke into a South Korean military data center
in September 2016 and made off with the secret documents.

Among the stolen files is believed to be Operational Plan 5015,
which Yonhap calls "the latest Seoul-Washington plan to handle
an all-out war with Pyongyang.” Also believed to have been
stolen is Operational Plan 3100, which includes South Korea’s
plan to respond to local provocations from the North.

South Korean lawmaker Lee Cheol-hee said 235 gigabytes of
military data was stolen from the database and only 20 percent
of the stolen documents had yet been identified.

"Also among them were contingency plans for the South's special
forces, reports to allies' top commanders, and information on
key military facilities and power plants," he told Yonhap.

News of the stolen military documents comes a day after the
United Nations banned four ships that were transporting
prohibited goods to and from North Korea from entering any port
in the world.

The
head of a U.N. committee overseeing the enactment of sanctions
against the isolated regime, Hugh Griffiths, announced the port
ban Monday during a briefing in New York. He said the port ban
took effect last Thursday.

A maritime database that monitors naval vessels identified the
banned vessels as the Petrel 8, which is registered in Comoros;
the Hao Fan 6, which sails under the flag of Saint Kitts and
Nevis; and North Korea's Tong San 2. The fourth ship, the Jie
Shun, was not registered with any country.

The U.N. Security Council passed a resolution in August that
prohibits North Korea from exporting coal, iron, lead and
seafood products, in response to Pyongyang's successful test of
an intercontinental ballistic missile. A new round of sanctions
was approved in September, after the North conducted its sixth
nuclear test.